Seyed-Yaser Nabavi-Chashmi and  Davood Asadi and  Karim Ahmadi and  Eren Demir,  Image-Based UAV Vertical Distance and Velocity Estimation Algorithm during the Vertical Landing Phase Using Low-Resolution Images.   journal   = {International Journal of Aerospace and Mechanical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2023, vol. 193(1). 28 - 35
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10012919.